STI 3150 Weather Stopper without Horn with Clear Spacer, Fire Label, Red

Protect critical manual pull stations from weather, vandalism and nuisance activations with the Safety Technology International STI 3150 Weather Stopper protective cover. Engineered for commercial security and life-safety systems, this surface-mount cover deters false fire alarms while allowing quick, reliable activation during emergencies — helping maintain uninterrupted monitoring and surveillance workflows.

The STI 3150 features a clear spacer with gaskets and an IP44 rating to guard devices against rain and dust, and it is UL/cUL Listed and ADA compliant to meet building and accessibility codes. Its rugged polycarbonate body withstands impact and reduces repair costs, making it ideal for high-traffic facilities such as hospitals, schools, hotels and industrial sites. The version without a horn preserves a low-profile appearance where audible deterrence is not required.

Easy to install and compatible with standard pull stations, the Weather Stopper supports broader security and fire protection strategies by reducing false alarm incidents and extending equipment lifespan. Protect your monitoring infrastructure — add the STI 3150 to your specification or contact us for integration details.

• Reduces false fire alarms while preserving immediate access for legitimate activations
• Weatherproof protection (IP44) and gasketed clear spacer extend pull station life in indoor/outdoor settings
• UL/cUL Listed and ADA compliant design meets code and accessibility requirements for commercial installations
• Surface-mount, low-profile cover fits standard manual pull stations without a horn for discreet protection
• Durable polycarbonate construction deters vandalism and physical damage, lowering maintenance and replacement costs